PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S1091Manometer,vertical Tube

King Engineering Corporation Dba King-Gage Systems · NSN 6685-00-983-2758 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-983-2758 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-983-2758. Primary manufacturer part number: S1091.
Features
  • Manometer,vertical Tube — FSC 6685
  • Scale Range: +0.000 TO 10.000 INCHES AND +0.000 TO 25.000 POUNDS PER SQUARE INCH LBS
  • Indicating Liquid for Which Designed: MERCURY
  • Connection Facility Type: EXTERNAL
  • Scale Smallest Increment: 0.200 INCHES AND 0.100 POUNDS LBS
  • Control Valve: PROVIDED
  • Equalizing Valve: NOT PROVIDED
  • Parallax Eliminating Feature: PROVIDED
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Manometer,vertical Tube, cataloged under National Stock Number 6685-00-983-2758, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is King Engineering Corporation Dba King-Gage Systems. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-983-2758
Primary Part NumberS1091
Item NameManometer,vertical Tube
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerKing Engineering Corporation Dba King-Gage Systems
StatusACTIVE
Scale Range+0.000 TO 10.000 INCHES AND +0.000 TO 25.000 POUNDS PER SQUARE INCH LBS
Indicating Liquid for Which DesignedMERCURY
Connection Facility TypeEXTERNAL
Scale Smallest Increment0.200 INCHES AND 0.100 POUNDS LBS
Control ValvePROVIDED
Equalizing ValveNOT PROVIDED
Parallax Eliminating FeaturePROVIDED
Connection LocationBACK, CENTER
Thread Size and Series/type Designator0.250-18 NPT
Mounting Provision for Which DesignedSURFACE PANEL
Operating Pressure350.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Receptacle TypeWELL
Accessory Components and Quantity3 OVERFLOW CHECK VALVES
Indicating LiquidNOT PROVIDED
Connection TypeTHREADED
Zero AdjusterPROVIDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4320-00-394-6993S1091 INTERCHANGEABLE
Pump,centrifugal
The Dewey Electronics Corporation Div Pitometer Log Division
5930-01-176-1702 INTERCHANGEABLE
Switch,push
Cross-Reference Index
Part NumberManufacturer
C35WM60 King Engineering Corporation Dba King-Gage Systems (USA)
C3SWM60 King Engineering Corporation Dba King-Gage Systems (USA)
S1091 PRIMARY King Engineering Corporation Dba King-Gage Systems (USA)
21C2787P010 General Electric Company (USA)
Related Parts
4320-00-394-6993INTERCHANGEABLE
PUMP,CENTRIFUGAL
S1091
5930-01-176-1702INTERCHANGEABLE
SWITCH,PUSH

Frequently Asked Questions

What is NSN 6685-00-983-2758?

NSN 6685-00-983-2758 is a Manometer,vertical Tube, manufactured by King Engineering Corporation Dba King-Gage Systems, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-983-2758?

NSN 6685-00-983-2758 has 4 cross-referenced part numbers: C35WM60 (King Engineering Corporation Dba King-Gage Systems), C3SWM60 (King Engineering Corporation Dba King-Gage Systems), S1091 (King Engineering Corporation Dba King-Gage Systems), 21C2787P010 (General Electric Company).

What NSN replaces 6685-00-983-2758?

There are 2 known substitutes for 6685-00-983-2758: 4320-00-394-6993, 5930-01-176-1702. Verify interchangeability with system specifications before substitution.

What are the specifications of S1091?

Key specifications for S1091: Scale Range: +0.000 TO 10.000 INCHES AND +0.000 TO 25.000 POUNDS PER SQUARE INCH LBS; Indicating Liquid for Which Designed: MERCURY; Connection Facility Type: EXTERNAL; Scale Smallest Increment: 0.200 INCHES AND 0.100 POUNDS LBS. 17 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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